20782925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 27676800

約数和(自身を除く): 6893875

約数列:

[1, 5, 17, 25, 79, 85, 395, 425, 619, 1343, 1975, 3095, 6715, 10523, 15475, 33575, 48901, 52615, 244505, 263075, 831317, 1222525, 4156585, 20782925]

約数ペア:

[(1, 20782925), (5, 4156585), (17, 1222525), (25, 831317), (79, 263075), (85, 244505), (395, 52615), (425, 48901), (619, 33575), (1343, 15475), (1975, 10523), (3095, 6715)]